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Obstetrics and Gynecology International
Volume 2014, Article ID 361451, 8 pages
http://dx.doi.org/10.1155/2014/361451
Research Article

References of Birth Weights for Gestational Age and Sex from a Large Cohort of Singleton Births in Cameroon

1Department of Obstetrics and Gynecology, Faculty of Medicine and Biomedical Sciences, Yaounde General Hospital, University of Yaounde I, P.O. Box 5408, Yaounde, Cameroon
2Chantal Biya International Reference Centre for Research on HIV/AIDS Prevention and Management, P.O. Box 3077, Yaounde, Cameroon
3Department of Public Health, Faculty of Medicine and Biomedical Sciences, University of Yaounde I, P.O. Box 1364, Yaounde, Cameroon

Received 19 January 2014; Accepted 4 April 2014; Published 12 May 2014

Academic Editor: Marc J. N. C. Keirse

Copyright © 2014 Jean Dupont Kemfang Ngowa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To establish the percentile charts of birth weights for gestational age and sex within the Cameroonian population. Methods. A review of medical records of infants born between January 2007 and December 2011 at the maternities of two hospitals in Cameroon, Central Africa. Multiple pregnancies, births of HIV infected women, stillbirths, and births with major fetal malformations were excluded. The smooth curves of birth weight for gestational age and sex were created using the Gamlss package under R.3.0.1 software. Results. The birth weights of 12837 live birth singleton infants born to HIV negative women between 28 and 42 weeks of gestation were analyzed to construct the birth weight curves for gestational age and sex. The smoothed percentile curves of birth weights for gestational age and sex of Cameroonian infants have demonstrated an increasing slope until 40 weeks and then a plateau. There was a varied difference of distribution in birth weights for gestational age between Cameroonian, Botswanan, American, and French infants. Conclusion. We established the reference curves of birth weights for gestational age and sex for Cameroonians. The difference in birth weight curves noted between Cameroonian, Botswanan, American, and French infants suggests the importance of establishing the regional birth weight norms.